Home / 252,819.16-379,187.22-84,340.78

Finding the Fourth Proportional to 252,819.16, 379,187.22 and 84,340.78

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Solution

The fourth proportional to 252,819.16, 379,187.22 and 84,340.78 is: 126,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,819.16 : 379,187.22 = 84,340.78 : x
  2. Step 2: Convert to fraction form
    252,819.16/379,187.22 = 84,340.78/x
  3. Step 3: Cross multiply
    252,819.16x = 379,187.22 × 84,340.78
  4. Step 4: Simplify right side
    252,819.16x = 31,980,945,900.83
  5. Step 5: Solve for x
    x = 31,980,945,900.83/252,819.16
  6. Step 6: Final answer
    x = 126,497.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.